Abstract

In this work we describe theoretical and experimental physical aspects of
high-resolution imaging polarimetry and its application to
polarization-multiplexed encoding. We theoretically demonstrate that it is
possible to resolve the orientation of two fixed dipole-like emitters placed
significantly below the resolution limit if their emission is uncorrelated.
Furthermore, we experimentally demonstrate this phenomenon by illuminating
closely spaced asymmetric nanopits with unpolarized light and subsequently
determining their individual orientation and position from the measured spatial
distributions of the azimuth angle of the polarization and degree of
polarization, respectively. Reduction of the optical resolution of the imaging
system is also shown to only weakly affect resolution obtainable via
polarization measurements.

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